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using ChocolArm64.Memory;
using Ryujinx.Common.Logging;
using Ryujinx.Graphics.Memory;
using Ryujinx.HLE.HOS.Services.Nv.NvMap;
using System;
using System.Collections.Concurrent;
namespace Ryujinx.HLE.HOS.Services.Nv.NvGpuAS
{
class NvGpuASIoctl
{
private const int FlagFixedOffset = 1;
private const int FlagRemapSubRange = 0x100;
private static ConcurrentDictionary<Process, NvGpuASCtx> ASCtxs;
static NvGpuASIoctl()
{
ASCtxs = new ConcurrentDictionary<Process, NvGpuASCtx>();
}
public static int ProcessIoctl(ServiceCtx Context, int Cmd)
{
switch (Cmd & 0xffff)
{
case 0x4101: return BindChannel (Context);
case 0x4102: return AllocSpace (Context);
case 0x4103: return FreeSpace (Context);
case 0x4105: return UnmapBuffer (Context);
case 0x4106: return MapBufferEx (Context);
case 0x4108: return GetVaRegions(Context);
case 0x4109: return InitializeEx(Context);
case 0x4114: return Remap (Context, Cmd);
}
throw new NotImplementedException(Cmd.ToString("x8"));
}
private static int BindChannel(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Logger.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int AllocSpace(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASAllocSpace Args = MemoryHelper.Read<NvGpuASAllocSpace>(Context.Memory, InputPosition);
NvGpuASCtx ASCtx = GetASCtx(Context);
ulong Size = (ulong)Args.Pages *
(ulong)Args.PageSize;
int Result = NvResult.Success;
lock (ASCtx)
{
//Note: When the fixed offset flag is not set,
//the Offset field holds the alignment size instead.
if ((Args.Flags & FlagFixedOffset) != 0)
{
Args.Offset = ASCtx.Vmm.ReserveFixed(Args.Offset, (long)Size);
}
else
{
Args.Offset = ASCtx.Vmm.Reserve((long)Size, Args.Offset);
}
if (Args.Offset < 0)
{
Args.Offset = 0;
Logger.PrintWarning(LogClass.ServiceNv, $"Failed to allocate size {Size:x16}!");
Result = NvResult.OutOfMemory;
}
else
{
ASCtx.AddReservation(Args.Offset, (long)Size);
}
}
MemoryHelper.Write(Context.Memory, OutputPosition, Args);
return Result;
}
private static int FreeSpace(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASAllocSpace Args = MemoryHelper.Read<NvGpuASAllocSpace>(Context.Memory, InputPosition);
NvGpuASCtx ASCtx = GetASCtx(Context);
int Result = NvResult.Success;
lock (ASCtx)
{
ulong Size = (ulong)Args.Pages *
(ulong)Args.PageSize;
if (ASCtx.RemoveReservation(Args.Offset))
{
ASCtx.Vmm.Free(Args.Offset, (long)Size);
}
else
{
Logger.PrintWarning(LogClass.ServiceNv,
$"Failed to free offset 0x{Args.Offset:x16} size 0x{Size:x16}!");
Result = NvResult.InvalidInput;
}
}
return Result;
}
private static int UnmapBuffer(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASUnmapBuffer Args = MemoryHelper.Read<NvGpuASUnmapBuffer>(Context.Memory, InputPosition);
NvGpuASCtx ASCtx = GetASCtx(Context);
lock (ASCtx)
{
if (ASCtx.RemoveMap(Args.Offset, out long Size))
{
if (Size != 0)
{
ASCtx.Vmm.Free(Args.Offset, Size);
}
}
else
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid buffer offset {Args.Offset:x16}!");
}
}
return NvResult.Success;
}
private static int MapBufferEx(ServiceCtx Context)
{
const string MapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16} and size 0x{1:x16}!";
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASMapBufferEx Args = MemoryHelper.Read<NvGpuASMapBufferEx>(Context.Memory, InputPosition);
NvGpuASCtx ASCtx = GetASCtx(Context);
NvMapHandle Map = NvMapIoctl.GetNvMapWithFb(Context, Args.NvMapHandle);
if (Map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{Args.NvMapHandle:x8}!");
return NvResult.InvalidInput;
}
long PA;
if ((Args.Flags & FlagRemapSubRange) != 0)
{
lock (ASCtx)
{
if (ASCtx.TryGetMapPhysicalAddress(Args.Offset, out PA))
{
long VA = Args.Offset + Args.BufferOffset;
PA += Args.BufferOffset;
if (ASCtx.Vmm.Map(PA, VA, Args.MappingSize) < 0)
{
string Msg = string.Format(MapErrorMsg, VA, Args.MappingSize);
Logger.PrintWarning(LogClass.ServiceNv, Msg);
return NvResult.InvalidInput;
}
return NvResult.Success;
}
else
{
Logger.PrintWarning(LogClass.ServiceNv, $"Address 0x{Args.Offset:x16} not mapped!");
return NvResult.InvalidInput;
}
}
}
PA = Map.Address + Args.BufferOffset;
long Size = Args.MappingSize;
if (Size == 0)
{
Size = (uint)Map.Size;
}
int Result = NvResult.Success;
lock (ASCtx)
{
//Note: When the fixed offset flag is not set,
//the Offset field holds the alignment size instead.
bool VaAllocated = (Args.Flags & FlagFixedOffset) == 0;
if (!VaAllocated)
{
if (ASCtx.ValidateFixedBuffer(Args.Offset, Size))
{
Args.Offset = ASCtx.Vmm.Map(PA, Args.Offset, Size);
}
else
{
string Msg = string.Format(MapErrorMsg, Args.Offset, Size);
Logger.PrintWarning(LogClass.ServiceNv, Msg);
Result = NvResult.InvalidInput;
}
}
else
{
Args.Offset = ASCtx.Vmm.Map(PA, Size);
}
if (Args.Offset < 0)
{
Args.Offset = 0;
Logger.PrintWarning(LogClass.ServiceNv, $"Failed to map size 0x{Size:x16}!");
Result = NvResult.InvalidInput;
}
else
{
ASCtx.AddMap(Args.Offset, Size, PA, VaAllocated);
}
}
MemoryHelper.Write(Context.Memory, OutputPosition, Args);
return Result;
}
private static int GetVaRegions(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Logger.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int InitializeEx(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Logger.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int Remap(ServiceCtx Context, int Cmd)
{
int Count = ((Cmd >> 16) & 0xff) / 0x14;
long InputPosition = Context.Request.GetBufferType0x21().Position;
for (int Index = 0; Index < Count; Index++, InputPosition += 0x14)
{
NvGpuASRemap Args = MemoryHelper.Read<NvGpuASRemap>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetASCtx(Context).Vmm;
NvMapHandle Map = NvMapIoctl.GetNvMapWithFb(Context, Args.NvMapHandle);
if (Map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{Args.NvMapHandle:x8}!");
return NvResult.InvalidInput;
}
long Result = Vmm.Map(Map.Address, (long)(uint)Args.Offset << 16,
(long)(uint)Args.Pages << 16);
if (Result < 0)
{
Logger.PrintWarning(LogClass.ServiceNv,
$"Page 0x{Args.Offset:x16} size 0x{Args.Pages:x16} not allocated!");
return NvResult.InvalidInput;
}
}
return NvResult.Success;
}
public static NvGpuASCtx GetASCtx(ServiceCtx Context)
{
return ASCtxs.GetOrAdd(Context.Process, (Key) => new NvGpuASCtx(Context));
}
public static void UnloadProcess(Process Process)
{
ASCtxs.TryRemove(Process, out _);
}
}
}
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